the shooting spree at ft. Hood. We're learning act his possible motive and the victims of his rampage. Alex Perez has the latest in Texas. Alex, good morning. Reporter: Good morning, bianna. For the first time, we're seeing one of the survivors, sergeant Jonathan Westbrook. He came face to face with the gunman. This morning, an exclusive look at sergeant Jonathan Westbrook reuniting with his family overnight for the first time since he nearly lost his life at ft. Hood. Westbrook's father drove ten hours from Mississippi to be with his son. You think your son is overseas and worry something can happen to him if he was serving somewhere else. He was right here, at home, on base. That is beyond my ability to express or describe to you. My son was deployed to Afghanistan last year, and he came back here to a U.S. Military place that secures and almost lost his life and got wounded. Reporter: Sergeant Westbrook was one of the first people shot, twice in the chest and twice in the arm. We walked the floor, we cried, we prayed. We allowed ourselves to think of the worst. Reporter: Westbrook says Lopez had been in the office shortly before the shooting, asking for a leave of absence form when he was told to return for the form the following day, Lopez apparently lost it and stormed out. He came back with a gun and opened fire. Reporter: The gunfire killing staff sergeant Carlos Rodriguez, timny Owens and Danny Ferguson, his fiance says he was killed while holding a door shut, trying to protect a room filled with military personnel. Since Wednesday, we've been to hell and back. Reporter: And Mr. Westbrook says those seven hours without his son were the longest hours of his life. There are already plans for a memorial to remember the victims here in ft. Hood next week. Dan, bianna? Alex, thank you.

This transcript has been automatically generated and may not be 100% accurate.

The family of one of the victims describes what it was like during the attack.

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